CBM detector and electronics tests at COSY in 2017 and Q1/2018 - - PowerPoint PPT Presentation

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cbm detector and electronics tests at cosy in 2017 and q1
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CBM detector and electronics tests at COSY in 2017 and Q1/2018 - - PowerPoint PPT Presentation

Apr 14, 2023 227 likes •406 views

CBM detector and electronics tests at COSY in 2017 and Q1/2018 Johann M. Heuser GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt, Germany for the CBM Collaboration 6 th COSY Beamtime Advisory Committee Meeting, IKP FZ Jlich, 26

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Johann M. Heuser GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt, Germany for the CBM Collaboration 6th COSY Beamtime Advisory Committee Meeting, IKP FZ Jülich, 26 June 2017

CBM detector and electronics tests at COSY in 2017 and Q1/2018

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Outline

1) Results from in-beam test, February 2017 2) Request for re-scheduled beamtime, May 2017

I. October 2017 (1 week)

3) Application for beamtime in Q1/2018:

  • I. Electronics tests: Feb. 2018 (1 week)
  • II. Detector tests:

Feb./March 2018 (1 week)

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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(1) Results from in-beam test, February 2017

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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STS-XYTERv2 ASIC – Test for single-event effects in JESSICA Cave

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CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Two different architectures:

→ DICE cells: 31744 bits (ADC trim DACs) → Flip-flops: 47616 bits (ADC disc counters) → 3 ASICs under test.

25o

Beam features: → 1.6 Gev/c momentum (Info from AT). → 18 s duty cycle. → 4 – 5 s spill length. → Average intensity per spill > 4 x 109 p → Effective irradiation time: ~ 45 hours. → Integral intensity: ~ 3.7 x 1013 p. Beam monitoring: → Ionization chamber (IC) for beam intensity. → Gafchromic films for beam position and beam profile.

~18 s 18 s cy cycl cle

SEU Test Setup@COSY Feb.2017

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Results (I)

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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SEU in DICE cells (8 bits).

_____________TOTALS_____________

  • No. of bits SEU

Flip-Flops: 47616 75057 DICE cells: 31744 759 FF/DICE 1.5 66

→ Improvement in the radiation hardness of the DICE cells architecture relative to the STS-XYTERv1 as expected. → Hint for further enhancement (cells 4 to 7) Findings:

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Results (II)

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Two unexpected scenarios of malfunction observed during operation in test beam:

1) Potential latch-up in AFE (analog front end) control path

  • Symptoms

– Errors in read-back from registers in the AFE: counters, configuration registers – correlated with higher supply current ( 0.6 A  0.8 A ) – startup procedure (sync, reset, configure) does not cure – power cycle recovers from condition

  • 4 occurrences during normal operation
  • No effect seen in registers of digital backend

 probably latch-up in row/column decoders of AFE registers  Possible means to fix: more contacts to bulk & wells - and add guard rings. 2) Randomly toggling bits in test counters

  • some counter bits do not retain stable values: some bits toggle randomly

– Symptom: inconsistent or erroneous read-back

  • appeared at the same time in all 3 ASICs in beam during beam optimization at higher rates ( > 8 × 109 p/spill)
  • Permanent effect
  • counters are not rad-hard  only used for monitoring in test phase, not critical
  • Problem does not affect configuration registers

– Possible remedy: applying similar changes as applied to the DICE registers may also solve counter problems:

  • better T-well & n-well contacts by guard rings

further investigations planned in February 2018

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(2) Request for re-scheduled beamtime 2017

  • In May 2017 we had the following tests scheduled (2 weeks):

– Test of readout electronics for RICH-MAPMTs (DiRICH) – Diamond T0 tests with TRB3 read-out – Test of STS sensors (track reconstruction efficiency*  charge collection) – Test of new GEM detectors for MuCH* – Test of new DAQ chain* (n-XYTERv2 ASICs, front-end boards type F, AFCK read-out boards, prototype interface boards FLIB to FLES)

* cancelled due to dying/noise problem in n-XYTER front-end boards

  • We would like to carry out part of the tests in October 2017:

– DiRich read-out study – Diamond T0 test / HADES MDC – power regulators – TID effects – Configuration Scrubbing via GBT-SCA chain

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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1 week of beamtime, 2nd half of October (weeks 42+)** in JESSICA or BIG KARL cave

** due to CBM, HADES Collab. Meetings

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Test of readout electronics for RICH-MAPMTs

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Goals for COSY test beam:

First full system test with complete front end electronics: 12 MAPMTs, 2 backplanes, 24 DiRICH, 2 DiRICH-Combiner

  • Check stability and functionality of new readout chain
  • Determine single photon detection efficiency with new

DiRICH readout

  • Test readout chain under realistic high rate conditions
  • Test performance of new WLS coating

COSY Cherenkov prototype detector with lense radiator (right compartment), and 1 or 2 fully equipped readout modules (left compartment)

p

first DiRICH “ring” with light pulser + shadow mask at GSI

Status:

Second iteration of DiRICH front-end module 30x DiRICH2 produced, ready for testing (2 full backplanes, 12 MAPMTs) COSY prototype testbox ready for beam:

  • Solid glass lense Cherenkov radiator
  • with 2 modules: 12 MAPMTs, 24 DiRICH

Promising first tests at GSI with light pulser in preparation of COSY beamtime:

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DiRICH read-out modules

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

9 full backplane for 6 MAPMTs, 12 DiRICH + Combiner + Power module single DiRICH front-end module, 32 ch DiRICH-Power module for LV and HV supply DiRICH-Combiner module

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Diamond T0 tests with Scope/TRB3 read-out

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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TRB3 System:

  • FPGA-based high precision TDC measurement and DAQ in one
  • Leading edge precision: 8-12ps (RMS)
  • Very flexible trigger functionality (FPGA)
  • Hit rates < 50 MHz (burst)

Used in many FAIR Projects:

  • HADES (diamond/trigger/RICH/ECAL),
  • CBM RICH,
  • PANDA (Barrel-DIRC/Straw)
  • and also outside of FAIR: MUSE, A1, ...
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MDC & Diamond setup

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

11 Goals:

  • Study drift velocity map inside drift cell, gas mixture

dependency

  • Compare precision of old & future HADES analog

ASICs

  • Measure spatial resolution of full system: MDC +

analog + digital electronics with standalone DAQ Setup:

  • Mini Drift Chamber (MDC)
  • 50x20 cm² active area
  • 2 drift cell layers,
  • each 40 cells (5x5 mm²)
  • reference / tracking by Diamond (scCVD) detector:
  • 4 channels, 100µm gap
  • time precision < 100 ps
  • movable (µm step precision)

Mini Drift Chamber (MDC) scCVD

drift time map inside a single drift cell (measured by laser ionization @ HZDR)

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(3) Application for beamtime in Q1/2018

(a) One week of electronics tests in high-intensity proton beam (February 2018)

  • STS-XYTER v2 ASIC: near-final chip before its mass production;

carry out more detailed investigations of open questions:

  • verify single-event for register cells of different architectures
  • verify unexpected latch-up events observed previously
  • verify potentially dose-rate dependent failures at highest COSY intensities

(> 7 × 109 protons/spill of 5 seconds)

  • Test new custom-designed LDOs for effects of total ionizing dose

and fast transients.

  • Test robustness of new Fault Tolerant Local Monitoring and Control

(FTLMC) board against SEU radiation effects

  • Different FPGA electronics will be tested for single-event upsets

and the effectiveness of data correction methods.

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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(3) Application for beamtime in Q1/2018

(b) One week of detector tests in mid-intensity, widened proton beam (February or early March 2018)

  • Test of prototype STS modules read out with the

STS-XYTER v2 ASIC

– The module will employ the final prototype sensors and microcables bonded to STS-XYTER v2 ASICs mounted on a technical prototype of the front-end electronics board. – Several modules shall be tested for their detection performance in a particle beam covering a good fraction of the silicon sensors. Beam widened to the pipe diameter in the Big Karl cave (about 6 cm diameter) is well suited to such test.

  • T0 Diamond detector test

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Prototype STS module read out with the STS-XYTER v2 ASIC

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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dummy module from assembly trials STS-XYTERv2 test board connected to a silicon microstrip sensor FEB-8 under development microstrip sensor microcables prototype module with STS-XYTERv2 read-out under preparation

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Prototype STS module read out with the STS-XYTER v2 ASIC

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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AFCK-DPB FLIB FLES node

STS-XYTER FEB (r/o front + back ) 2x 128 chs 2 x 1 E-Link key issue to be addressed: S/N as function of micro cable length IP bus

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CBM request October 2017 summarized

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Total number of particles and type of beam (p,d,polarization) Momentum range (MeV/c) Intensity or internal reaction rate (particles per second) minimum needed maximum useful p p ~ 2700 p ~ 400 ~ 104 up to 106 Experimental area Safety aspects (if any) Earliest date of installation Total beam time (No.of shifts) JESSICA or Big Karl Cave None October 2017 Detector tests: DiRICH readout, T0 7 days around the clock (installation of equipment in advance

  • f the beamtime week

advantageous)

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CBM application Q1/2018 summarized

CBAC Meeting #6, 26.06.2017

  • J. Heuser - CBM detector & electronics tests at COSY

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Total number of particles and type of beam (p,d,polarization) Momentum range (MeV/c) Intensity or internal reaction rate (particles per second) minimum needed maximum useful p p ~ 2700 ~ 104 – 106 (detector tests) up to 109 (electronics tests) Experimental area Safety aspects (if any) Earliest date of installation Total beam time (No.of shifts) JESSICA or Big Karl Cave None February 2018 electronics tests: front-end ASIC STS- XYTERv2, power regulators,control boards, FPGA 7 days around the clock (installation of equipment during the beamtime week is sufficient) Experimental area Safety aspects (if any) Earliest date of installation Total beam time (No.of shifts) Big Karl Cave None February/early March 2018 detector tests: prototype STS module with STS-XYTERv2 read-out , T0 7 days around the clock (installation of equipment during the beamtime week is sufficient)